Imlau A, Sauer N (1999)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 1999
Publisher: CELL PRESS
Book Volume: 97
Pages Range: 743-754
Journal Issue: 6
DOI: 10.1016/S0092-8674(00)80786-2
Open Access Link: http://www.sciencedirect.com/science/article/pii/S0092867400807862
Leaves undergo a sink-source transition during which a physiological change occurs from carbon import to export. In sink leaves, biolistic bombardment of plasmids encoding GFP-fusion proteins demonstrated that proteins with an M-r up to 50 kDa could move freely through plasmodesmata. During the sink-source transition, the capacity to traffic proteins decreased substantially and was accompanied by a developmental switch from simple to branched forms of plasmodesmata. inoculation of sink leaves with a movement protein-defective virus showed that virally expressed GFP, but not viral RNA, was capable of trafficking between sink cells during infection. Contrary to dogma that plasmodesmata have a size exclusion limit below 1 kDa, the data demonstrate that nonspecific "macromolecular trafficking" is a general feature of simple plasmodesmata in sink leaves.
APA:
Imlau, A., & Sauer, N. (1999). Simple, but not branched, plasmodesmata allow the nonspecific trafficking of proteins in developing tobacco leaves. Cell, 97(6), 743-754. https://dx.doi.org/10.1016/S0092-8674(00)80786-2
MLA:
Imlau, Astrid, and Norbert Sauer. "Simple, but not branched, plasmodesmata allow the nonspecific trafficking of proteins in developing tobacco leaves." Cell 97.6 (1999): 743-754.
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